Gnephosis newbeyi is a species of flowering plant in the family Asteraceae and is endemic to the south-west of Western Australia. It is an annual herb with linear leaves, compound heads of yellow flowers, and brown cypselas.
Description Gnephosis newbeyi is an annual herb with erect branches long. Its leaves are sessile, linear, long, wide and often slightly curved. The pseudanthia are arranged in oblong, compound heads of 3 to 8, long and in diameter with about 15 bracts long and wide at base of the heads. The petals are yellow and form a tube about long and there are three stamens. Flowering has been recorded in November, and the fruit is an oval, brown cypsela, long, and the pappus is bristly.
Taxonomy and naming Gnephosis newbeyi was first formally described in 2016 by Philip Short in the Journal of the Adelaide Botanic Gardens from specimens collected on the western edge of Lake King. The specific epithet (newbeyi) honours Ken Newbey who brought the author's attention to this species.
Distribution and habitat Gnephosis newbeyi grows in sandy saline soils surrounding salt lakes near Lake King, Pingrup and Peak Charles in the Mallee bioregion of south-western Western Australia.
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